feat: seasonal decoration overlay + logo animation, admin site-theme config page

ui/src/routes/admin/site-theme/+page.server.ts

@@ -0,0 +1,7 @@
+import type { PageServerLoad } from './$types';
+import { getSiteConfig } from '$lib/server/pocketbase';
+
+export const load: PageServerLoad = async () => {
+	const config = await getSiteConfig();
+	return { config };
+};